Tool carriage and slide for machine tools



Aug. 14, 1928, Y

R. A. ASHTON `TOL`CARRIAGE AND SLIDFOR MACHINE TOOLS Filed March 18, 1926 WMEJ/HMJM www Patented Aug. 14, 1928.

UNITED. STATES VPATENT oFF1cE.1

RICHARD A. Asnromor SENECA FALLS, NEW Yoan, Assrenoa "ro SENECA iALEs' MACHINE Co., or sENECArALLs, NEW Yoan, A CORPORATION or MASSACHUSETTS.

Toor. CARRIAGE AND sLrnEFoR MACHINETooLs.

Application med mich; 18, 192s. serial no. 95,778.v4

This `invention relates to a tool carriage and slide for an engine lathe orvother similar machine tool, and more particularl lto a tool carriage and slide wh1chare mova le axiall of the machine during the operationthereo improved sprin0r tension device for withdrawing the too from the work and to certain arrangements and combinations of parts which will be hereinafter described `and more particularly pointed out in the appended claims.

A referred form of the invention is shown in t e drawings, in which Fig. 1 is a plan view of certain parts of a machine too showing my improved construction, j Fig. 2 is a sectional elevation thereof, taken j 30 along the line 2-2 in Fig. 1, and

Fig. 3 is a front elevation looking in the direction 3 in Fig. 2.

Referring to the drawings, I have shown a` ortion of a casing or frame l() having guideways 11 for a tool carriage 12 which 1s movable axially of the machine by any suitable driving mechanism (not shown). The carriage 12 is provided with guideways 13 for a tool slide 14- on which a suitable 4o turning or cutting tool T is secured by a clamp 15. The tool T may be adjusted longitudinally in the slide by an adjusting screw 16. Preferably a plurality of tools T are mounted on the slide 14 and two or 4,5 more clamping plates 15 and adjusting screws 16 are provlded.

A templet bar 20 is secured to the base or frame of the machine, and is held from axial movement therein. A bearing block or member 2l is fixed to the carriage 12 and provides a support for the straight face 22 of the templet bar.

A templet block 23` is secured to the slide 14 and engages the cam face 24 of the tem- 56 plet bar 20. v

A tension spring 25 is mounted on a headed b0lt26 within a recess 27 in the tool slide 14. The bolt 26 extends through the block 21 and is provided withadjusting lock nuts l 28, b which the pressure of the springf 25 l ma eadjusted. f

he spring is disposedbetween the head Vof the `bolt 26 and a shoulder 29 in the fre'- cess 27 `of Athe slide. The spring thu's acts to draw. the toolslide 14 yieldingly awayv from the work WV and `causes the templet block 23 to engage the cam` face 24 of the tem let bar 20.

T e templet bar is providedwith a raised and substantially horizontalportionSO and' 1s pressed downwards by a fixed support 31,

which prevents upward displacement' of the templet bar during the operation of the ma chine. Blocks 32 may be provided at the opposite edges of the tool carriage 12 to support the templet bar as it slides relatively to the tool carriage. Y

Having described the details of construe#` tion of my improved tool carriage and slide, the method of operation thereof will be readily apparent. As the tool carriage is moved axially of the work on Vits guide way 11, the templet block 23 is moved along I the cam face 24 of the templet bar 20, which causes a transverse movement of the tool'T towards and from the work. The tool is l advanced positively by the cooperation ofV the templet bar and `templet block, and is withdrawn from the work by the spring 25. As the carriage moves axially, the bearing block 21 of the carriage provides a bearing or support for the templet bar and resists the pressure of the spring 25, and of the'work. n

I have ythus provided a very simple mechanism by which one or more turning or cuttingtools may be advanced and retracted as 7 i desired and by which these movements may be very easily varied, simply by changing the templet bar to provide any desired operation.

Having thus described my invention, and the advantages thereof, I do not wish to be' limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is z- 1. In a machine tool, a frame, a toolcarriage slidable valong said frame, a tool slide mounted on said carriage, a templet bar fixed to said frame, a templet block on said ian tool slide engaging a cam face 'of zsa'idtexnplet bar 'to move said tool slide towards` the work, means to yieldinely move said tool slidezf/romtheiworkiand to holdsaid templet block against saidtemplet bar,ysaid slide 4 having a recesstherein and said yielding means comprisino` aheaded rodafixed in said e carriage and having its headed end received in said recess, and a spring encircling saidf rod and compressed between che headY of saidrod and a shoulder in said'mrecessf` v 2. Ina machine tool,"a`"frame, a cool carl riage slidable along said frame,a Ytool slide mounted on said carriage, atemplet "bar xed to said frame,*a'temp1et block on said tool, slide engaging a cam faceof said tem'- 'plet bai" tio move said tool slideytoivardsjthe Work,- nieans Vto yieldingly `I`nuove said r'cool slide from the Work and to hold Ysaid tem- 'plet block againstsaid templet bar,sa id lslide ,having a recess therein and said yielding meanscomprising a headed rod fixed in said carriage and having its headed end received in said recess, and aspring encircling said rod and compressed between "the, head of said rod and a" shoulder in said' recessysaid tool slide .having 'rovision for holding a'. plurality of tools t ereon,'and having separate means for adjusting each tool towards and'from the Work.

3. In a `machine tool, a frame, a ltool car` havingfa recess therein and said -in said means comprising a headed rod `five carriageandliaving its headed end received in said recess, and a `springencircling said rod land ycompressed between the head of said rodand aslioulder in said recess, said tempiet barbeing slipported in inclined ,positionbut having a "horizontal upper portion, Aand aholdngdevice `for said templetbar engaging said horizontal portion.

In testimony whereof I have Ahereunto aiiiyxedmy signature. f

" Y ASHTON. 

